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Proof step 26 from proof intshiftrsign-rec-neg (previous step)

i < 0, j < 32, 0 < j ⊦ i = ~1, bits2int(sublist(0, # int2bits((i - 1) / 2) + 1, (true ' + mklist(true, i→n(j) - 1)) + int2bits((i - 1) / 2) + (i % 2 ≠ 0)')) = bits2int(sublist(0, # int2bits((i - 1) / 2), mklist(true, i→n(j - 1)) + int2bits((i - 1) / 2))), j = 0

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

seq: n ≠ 0 ⊦ sublist(0, (* n), boolvar ' + bits) = boolvar ' + sublist(0, n -1, bits) subst: [bits, boolvar, n] → [ mklist(true, i→n(j) - 1) + int2bits((i - 1) / 2) + (i % 2 ≠ 0)', true, # int2bits((i - 1) / 2) + 1] rotate: F spec: list-del inst: bitlista name: sublist-num-01

Additional information

Used simplifier rules: ⊦ m + 1 ≠ 0;% ⊦ (m + n0) + n1 = m + n0 + n1;% ⊦ m + n = n + m;% ⊦ (bits + bits0) + bits1 = bits + bits0 + bits1; Used terms: mklist(true, i→n(j) - 1) + int2bits((i - 1) / 2) + (i % 2 ≠ 0)', true, # int2bits((i - 1) / 2) + 1